/*
 * Copyright 2021 spring-boot-extension the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package com.livk.spring.controller;

import com.livk.spring.domain.Greeting;
import org.springframework.hateoas.server.mvc.WebMvcLinkBuilder;
import org.springframework.http.HttpEntity;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;

/**
 * <p>
 * GreetingController
 * </p>
 *
 * @author livk
 */
@RestController
public class GreetingController {

	private static final String TEMPLATE = "hello,%s!";

	@GetMapping("/greeting")
	public Mono<HttpEntity<Greeting>> greeting(
			@RequestParam(value = "name", required = false, defaultValue = "World") String name) {
		Greeting greeting = new Greeting(String.format(TEMPLATE, name));
		greeting
			.add(WebMvcLinkBuilder.linkTo(WebMvcLinkBuilder.methodOn(this.getClass()).greeting(name)).withSelfRel());
		return Mono.just(ResponseEntity.ok(greeting));
	}

}
